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☀ Solar
SFI 121
SN 99
A 11
K 2 Quiet
X-Ray C1.8
Wind 392.8 km/s
Aurora 3
Updated 14:30 UTC HamQSL · N0NBH
Day 80/40m Fair 30/20m Good 17/15m Fair 12/10m Fair
Night 80/40m Good 30/20m Good 17/15m Fair 12/10m Poor

Callsign Lookup
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Vanity Call Signs Available
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ⓘ Callsign lookups are in real time via the FCC database. Vanity callsign availability is refreshed daily at 6:00 AM CST. The vanity search may be unavailable for a few minutes during this update.
Live DX spots
Live DX Spots — 70cm via PSKReporter · scroll or pinch to zoom
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MHz DX Spotter Info
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HF Antennas

Discuss HF antenna design, tuning, and performance for amateur radio long-distance communication.

  1. inverted V vs flat top dipole — worth the hassle to get it flat?

    Lisa Anderson,
    • 1 reply
    • 122 views
    John Williams

  2. 20M Vertical Dipole vs Quarter-Wave Radial System - Performance Comparison

    Carlos Gutierrez,
    • 2 replies
    • 341 views
    James Anderson

  3. 40M dipole showing SWR issues on band edges - help with tuning?

    Andrew Martinez,
    • 2 replies
    • 270 views
    Jennifer Walsh53

  4. Vertical antenna radial system performance comparison - elevated vs ground mounted

    Susan Clark,
    • 2 replies
    • 372 views
    Michael Miller90

  5. Ground radial system performance: 16 radials vs 32 radials on 40m vertical

    Sarah Chen,
    • 2 replies
    • 691 views
    Michael Thompson

  6. wire dipole vs vertical for 40m — is the vertical really worth the hassle

    Microwave Guy,
    • 1 reply
    • 137 views
    Amanda Johnson64

  7. Hairpin matching for 20m 3-element Yagi - impedance transformation issues

    Nicole Larsen,
    • 2 replies
    • 245 views
    Emily Rodriguez

  8. dipole vs vertical for 40m — am i overthinking this

    Michael Moore,
    • 1 reply
    • 170 views
    Steve Martinez

  9. 40m dipole vs vertical for a small suburban lot — am i overthinking this

    Ashley Johnson24,
    • 1 reply
    • 216 views
    Mike Thompson

  11. dipole vs vertical for 40m — is the height difference really that big a deal

    Amanda Jackson,
    • 1 reply
    • 140 views
    James Rodriguez

  12. dipole vs vertical for 40m — am i overthinking this

    Linda Wilson,
    • 1 reply
    • 138 views
    Contest Fan

  13. inverted V vs straight dipole for 40m — actually worth the difference?

    Jessica Wilson,
    • 1 reply
    • 198 views
    Dave Thompson

  14. dipole vs vertical for 40m — is the height thing really that big a deal

    Sarah Garcia,
    • 1 reply
    • 165 views
    Steve Martinez

  15. dipole vs vertical for 40m — am i overthinking this

    Packet Radio,
    • 1 reply
    • 102 views
    Carlos Martinez

  16. Yagi element diameter effect on tuning - scaling 6M design to 10M

    Antenna Guy,
    • 2 replies
    • 313 views
    Diana Washington

  17. 40m dipole vs vertical — which actually performs better at low angles

    Kevin O'Connor,
    • 1 reply
    • 103 views
    Emily Johnson

  18. wire dipole vs vertical for 40m — am i overthinking this

    Ashley Johnson24,
    • 1 reply
    • 178 views
    Ashley Johnson24

  19. 40m dipole vs vertical - am i overthinking this

    Daniel Rodriguez,
    • 1 reply
    • 157 views
    Daniel Rodriguez

  20. dipole vs vertical for 40m — can't decide and my yard isn't helping

    John Williams99,
    • 1 reply
    • 118 views
    Karen Lewis

  21. dipole vs vertical for 40m — which one actually performs better in a small backyard

    Lisa Park,
    • 1 reply
    • 164 views
    Gregory Smith

  22. inverted V vs flat top dipole — worth the hassle of getting it flat?

    CW Operator,
    • 1 reply
    • 260 views
    David Chen

  23. dipole vs vertical for 40m — am i overthinking this

    Jessica Thomas,
    • 1 reply
    • 131 views
    Amanda Davis

  24. inverted V vs flat top dipole for 40m — actually worth the hassle?

    Bob Wilson,
    • 1 reply
    • 154 views
    Priya Patel

  25. dipole vs vertical for 40m — am i overthinking this

    Microwave Guy,
    • 1 reply
    • 107 views
    Angela Turner

  26. dipole vs vertical for 40m — which is actually worth the hassle

    Christopher Lee,
    • 1 reply
    • 142 views
    Nicole Martin

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